Molding-machine.



H. TSCHERNNG.

MOLDING MACHINE.

APPLICATION FILED IAN.5, I9I6.

Patented May 2,1916.

4 SHEETS-SHEET l.

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THE COLUMBIA PLANOURAPM e0.. WASHINGTON, D. c

H. TSCHERNING. MOLDING MACHINE.

APPLICATION FILED IAII.5. 1916.

Patented May 2, 1916.

4 SHEETS-SHEET 2 H. TSCHERNING.

MOLDING MACHINE.

APPLICAHON FILED 1AN.5.1916.

Patented May 2, 1916.

4 SHEETS*SHEET 3.

H. TSCHERNING.

MOLDING MACHINE.

APPLICATION FILED 1AN.5.1916.

Patented May 2, 1916.

4 SHEETS-SHEET 4.

Llmgs S Ur// THB COLUMBIA PLANQGRAPM co.. WASHINGTON. D. c.

HENRY TSCHERNING, OF FRE-EPORT, ILLINOIS, ASSIGNOR TO ARCADE MANUFAC- TURING COMPANY, 0F FREEPORT, ILLINOIS, A CORPORATION OF ILLINOIS.

MOLDING-MACI-IINE.

Specification of Letters Patent.

Patented May 2, 1916.

Original application filed September 3, 1915, Serial No. 48,767. Divided and this application filed January 5, 1916. Serial No. 70,476.

To all whom t may concern:

Be it known that I, HENRY TSGHERNING, a citizen of the United States, and a resident of Freeport, in the county of Stephenson and State of Illinois, have invented certain new and useful Improvements in Molding`Viachines, of which the following is a specification.

The nature of my invention, which is a division of my pending application Serial Number 48,767, filed September 3, 1915, will appear from the following description of one of the forms in which it may be embodied which has been selected by me for purposes of illustration, and `the essential characteristics of said invention will be pointed out in the claims at the end of this specification. This preferred form is shown in the drawings in which- Figure 1 is a side elevation of the same; Fig. 2 is a plan; Fig. 3 is a broken middle longitudinal vertical section; Fig. 4 shows details in a vertical transverse section in plane 4 1 of Fig. 1 looking in the direction of the arrow 4; and Fig. 5 shows parts in a vertical transverse section in plane 5-5 of Fig. 1 looking in the direction of the arrow 5.

A is a supporting bed. At the left in Fig. 1 is a vibrating table, B, carried by an air cylinder, Z), supplied with compressed air through a pipe, b1, and'operating in the manner well known in the art. Upon opposite sides of the transverse middle portion of the bed are two upright standards, C. C1, (Fig. 4) supporting two guide rods, D, D1, and vertical racks, E, El. A vertically sliding frame, F, is guided on the rods and in it is mounted a shaft, G, carrying at its opposite ends pinions, H, H1, in mesh respectively with the racks E, El. The middle portion of the shaft carries a swinging frame K.

A piston rod, m, connects the frame F with a piston, M, in an air cylinder, N, supplied with compressed air through pipes, n, nl, (Fig. 3). The air pressure upon the piston moves the fraineF up and down run-V of four bolts, y), 1 92 3 assin throu h h oles in the franfe.9 ZTh7 tvib boltgs on eah side of the frame are connected by a spring bar, p4, upon the middle portion of which a crank arm, p5, bears to bend the bar downwardly in Fig. 1 to clamp the swinging table to the frame K, as seen in Fig. 3. When the parts are as seen in Fig. 1, the swinging table P rests on the vibrating table B and may be vibrated thereby. The crank arm p5 1s fast upon a shaft, p6 mounted in bearing, 7c, on the swinging frame. A second crank, p7, a link, 228, and a lever, p9, afford means for conveniently operating the crank arm p5.

Beneath each bearing is a post, S, to support the frame K in the position seen in Fig. 1.

At the right hand end of the bed A (Figs. l, 2, 3) is a flask receiving device, T, having four'supporting arms, t, t1, t2, t3, upturned at their free ends (see Fig. 1) and pivoted at their other ends upon studs, t4, (see Fig. 5l carrying clamp levers, t5, by means of which the arms may be clamped against rocking on the studs. Qne of these clamp levers is shown in side elevation in Fig. 1 and the section seen in Fig. 5 shows how one end of each lever is threaded upon its correspond ing stud so that angular movement of the lever upon the stud may tighten it upon the other parts thereon, and clamp them tightly together and also tightly against the head` U, in which the studs are secured. l

.Each supporting arm has a lug, t, dcpending near its pivoted end and compression springs, 257, are interposed under tension between the lugs of the members of each pair of arms to urge the lugs apart and the free ends of the arms upward. This is best shown in Fig. l, where the spring l is seen between two of the lugs t6, the lug at the left being a part of the supporting arm and the lug at the right being a part of the supporting arm t1. Both arms are pivoted upon the stud t4, so that the opening of the spring separates the lugs and raises the free ends of the arms.

The studs 154 are secured in a head, U, upon the top of a hollow plunger u, vertically guided in a vertically movable cyl` inder, V. A set screw, o, provided with a handle, o1, is used to clamp the plunger against movement in the cylinder V,

i o n i and a pipe, 0r, supplies compressed air to raise the plunger in said cylinder. Upon the bottom of the cylinder V is a piston, W, moving up and down in an outer cylinder, X, supplied with compressed air through the pipes fr, m1.

In operation, the swinging frame is first4 tom of the cylinder, raising the piston there- I in and swinging the frame K into the position shown in dotted lines in Fig. l. Adjustable stops, Y, are shown resting on the tops of the standards, C, C1, to limit the movement in this direction. Air is now turned into the hollow plunger, u, through the pipe c2, bringing the supporting arms t, t1, t2, t3, up against the bottom board of the flask, the arms accommodating themselves to the latter, after which they are clamped against rocking upon their pivots by means of the clamp arms t5. rPhe hollow plunger is now clamped to the cylinder V by means of the screw o, and the table P released from the bottom board, allowing the flask to rest upon the supporting arms. |The latter are now lowered by admitting air through the pipe m1, and allowing it to escape through the pipe it drawing the pattern which is fast upon the table P. After the flask has been removed, the swinging table is returned to its iirst position and is ready for another flask. If the new flask is like the first, the raising of the piston W in the cylinder X will bring the supporting arms into position to receive the flask without adjustment of the hollow plunger in the cylinder V.

The air valves and cocks are seenin Fig.

Vl, but it is thought best not to describe them,

because the mere charging and exhausting of air cylinders is so common as to be well known to any one having the slightest knowledge of the art.

The details of the construction may be varied without materially affecting my invention, hence I do not limit myself thereto except by the following claims in which I intend to lcover all patentable novelty contained in said invention in view of the prior art.

I claim as new and desire to secure by Letters Patent l. The combination with the flask swinging frame of a rock-over molding machine, of a flask receiving device comprising an outer cylinder, a piston therein, an inner cylinder mounted on the piston, a hollow plunger in the inner cylinder, means for admitting or exhausting air at either end of the outer cylinder and into or out of the hollow plunger, means for clamping the plunger to the' inner cylinder, and suitable flask supporting devices upon the top of the plunger.

2. The combination with the flask swingv ing frame of a rock-over molding machine. of' a flask receiving support and two sets of pneumatic devices for raising and lowering the support, one of said sets being mounted upon the other and moving therewith and one of said sets having means for clamping its relatively movable parts against relative movement.

3. The combination with a rock-over molding machine, of four flask receiving arms pivoted at one end in pairs upon a horizontal axis, and having depending lugs, springs between the lugs of each pair, pivots for said arms, means for clamping the arms against angular movement on their pivots, and a suitable support for said pivots.

In witness whereof I have signed the above application for Letters Patent at Freeport, Illinois, this 20th day of December, A. D. 1915.

HENRY TSCHERNING. lVitnesses REEvE BURTON, SAM. C. SCHMITT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

